Portable telephone handset



FIG. 1 is a right, front, top view of a portable telephone handset, with a keypad cover in a closed position showing our new design;

FIG. 2 is a right, front, top view thereof, with the keypad cover in an open position;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof; and,

FIG. 5 is a top elevation view thereof. 

The ornamental design for a portable telephone handset, as shown and described. 